# Astro set 6

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1. Suppose you are in an elevator. As the elevator starts upward, its speed
will increase. During this time when the elevator is moving upward with
INCREASING speed, your weight will be __________.
greater than your normal weight at rest
2. Suppose you are in an elevator that is moving upward. As the elevator
nears the floor at which you will get off, its speed slows down. During
this time when the elevator is moving upward with DECREASING speed, your
weight will be ___
less than your normal weight at rest
3. The acceleration of gravity on Earth is approximately 10 m/s2 (more
precisely, 9.8 m/s2). If you drop a rock from a tall building, about how
fast will it be falling after 3 seconds?
30m/s
4. The difference between speed and velocity is that ________.
velocity also includes a direction
5. If you want to make a rocket turn left, you need to:
Fire an engine that shoots out gas to the right.
6. A net force acting on an object will always cause a change in the object's ________.
momentum
 Author: dwrght16 ID: 299209 Card Set: Astro set 6 Updated: 2015-03-26 01:53:54 Tags: Astro set Folders: Astro Description: exam 2 Show Answers: